Highly sensitive and selective ethanol sensors using porous SnO2 hollow spheres. Issue 16 (December 2016)

• Record Type: Journal Article
• Authors: Qiang, Z.; Ma, S.Y.; Jiao, H.Y.; Wang, T.T.; Jiang, X.H.; Jin, W.X.; Yang, H.M.; Chen, H.
• Is Part Of: Ceramics international. Volume 42:Issue 16(2016)
• Page Start: 18983
• Page End: 18990
• Publication Date: 2016-12
• Subjects: Porous -- SnO2 hollow nanospheres -- Ethanol -- Growth mechanism -- Gas sensing properties; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2016.09.053
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: Porous SnO2 hollow nanospheres have been prepared by a direct precipitation method using carbon spheres as template. The structural and morphological are investigated by XRD, SEM, TEM and BET. Both of the formation and sensing mechanism have been discussed. Most importantly, the gas sensor based on these porous SnO2 hollow nanospheres exhibited perfect sensing performance toward ethanol. The enhancement in gas sensing properties was attributed to their unique structures, including the large specific surface area (41.42 m 2 /g), hollow structure and porous feature. The results obtained in this study indicate that porous SnO2 hollow nanospheres are potential candidates for fabricating effective ethanol sensors.